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Figure 1 Correlation coefficients for the relations between left ventricular mass index (LVMI) and plasma renin activity or plasma concentrations of norepinephrine and epinephrine in obese and lean hypertensive patients. The r values are significant by univariate analysis for each of the variables in the lean patients; however, by multivariate analysis, only the plasma renin activity and norepinephrine relations remain in the model.